Domain lookup tools that answer from the registry

Check a domain's registration: who holds it and through which registrar, when it was created and when it expires, whether a name is free, and what could block a transfer. Answers come from the registry and registrar for the domain's ending. Not sure which tool you need? Find your question in the table below the tools.

Tools

Domain lookup

Read a domain's registrar, dates, statuses, and nameservers.

Domain age checker

Find when a domain was registered and how old it is.

Domain expiry checker

See when a domain expires and what happens after.

Domain availability

Check whether a domain name is already registered.

Multi-TLD availability

Check one name across up to 12 domain endings.

Registrant lookup

See who owns a domain, or how to reach them if hidden.

Registrar lookup

Find a domain's registrar and its abuse contact.

Transfer readiness

See what could block moving a domain to another registrar.

Domain report

Check registration and live DNS together and find mismatches.

Punycode converter

Convert domain names between Unicode and xn-- punycode.

DNS lookup

Look up a domain's DNS records from a public resolver or its own nameserver.

Which domain tool do I need?

Find the question you're asking.

Your questionTool to use
What does the full registration record say?Domain lookup
How old is this domain?Domain age checker
When does it expire, and what happens then?Domain expiry checker
Can I register this name?Domain availability, or multi-TLD availability to try several endings
Who owns it, and how do I reach them?Registrant lookup
Which registrar is it with, and where do I report abuse?Registrar lookup
Can I move it to another registrar?Transfer readiness
It's registered, so why isn't it working?Domain report
What does a status such as clientHold mean?EPP status codes
How do I write a name with accents or non-Latin letters?Punycode converter
What DNS records does it have?DNS lookup

Is WHOIS still used?

Less and less. ICANN stopped requiring WHOIS for most generic endings, such as .org, on 28 January 2025, and RDAP replaced it. Some country endings, such as .it, .eu, and .jp, still offer only WHOIS. The tools here use RDAP when the registry offers it and the registry's WHOIS server when it doesn't. The domain lookup page explains how the two differ.

Can every domain ending be looked up?

Most can, but not all. A few endings, mostly small country endings, have no lookup service the tools can use. For those, the tools say they can't check the name, which doesn't mean it's free. The TLD directory shows how each ending is checked and links each registry.

Can I see who owned a domain before?

No. The registry returns only the current record, with no past owners or old nameservers. Sites that show history use copies they saved over time.

What happens to the names I look up?

The name goes from stack127 to the registry, and to the registrar that holds it. stack127 keeps saved answers by domain name, not linked to you. A result can be a saved answer up to 24 hours old, and it shows when it was fetched.